variable #1
variable #2
variable #3
variable #4
variable #5

if statement #1
if statement #2

loop #1
loop #2
loop #3
loop #4

function #1
function #2
function #3
function #4
function #5
function #6
function #7 - passing by reference
function #8
function #9
function #10

file #1
file #2

array #1
array #2

string #1
string #2